1044231122221 has 6 divisors (see below), whose sum is σ = 1214717836110. Its totient is φ = 895055247576.

The previous prime is 1044231122203. The next prime is 1044231122287. The reversal of 1044231122221 is 1222211324401.

It can be written as a sum of positive squares in only one way, i.e., 1044097719721 + 133402500 = 1021811^2 + 11550^2 .

It is not a de Polignac number, because 1044231122221 - 2⁷ = 1044231122093 is a prime.

It is a super-2 number, since 2×1044231122221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044231122021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10655419566 + ... + 10655419663.

It is an arithmetic number, because the mean of its divisors is an integer number (202452972685).

Almost surely, 2^{1044231122221} is an apocalyptic number.

It is an amenable number.

1044231122221 is a deficient number, since it is larger than the sum of its proper divisors (170486713889).

1044231122221 is an equidigital number, since it uses as much as digits as its factorization.

1044231122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21310839243 (or 21310839236 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1044231122221 its reverse (1222211324401), we get a palindrome (2266442446622).

The spelling of 1044231122221 in words is "one trillion, forty-four billion, two hundred thirty-one million, one hundred twenty-two thousand, two hundred twenty-one".